Description

The simulation engine is NGSPICE, running locally on your device.No need to stay connected all the time to some server - everything is included!

== Features ==+ From transistor-level to advanced modeling, everything is easy to build and simulate.+ Device TCAD, 1D and 2D modelling and simulation.+ Flexibility to build hierarchical schematics, symbols, and models (including corners).+ All tools work together seamlessly, so you can go fast from design idea to results. No need to look under the hood.+ When you want more control, you have that also: all files are editable text that you can tweak.+ At all steps you can import data and proceed (including models and spice input: netlists, commands, etc.).+ Share literally anything (including schematics, symbols, models, netlists, results, screen snapshots), via mail or any other app.+ Pre-made symbols for all primitive components.+ Several sample schematic, including: folded cascode OTA, bandgap reference, chargepump, sigma-delta ADC models.+ Easy-to-use results browser allows to plot and measure. Pick your outputs directly from the schematics or from a list.+ No ads!

== Free Demo ==Try our free WeSpice Demo!The demo version has less functionality, but still allows you to try out most of the features.We recommend installing the demo first, to check compatibility and ease of use (especially for small phones).Limitations: no Symbol Editor and Model Manager, large schematics are not saved, long simulations are truncated.

== Simulator ==+ The simulator is NGSPICE, based on Berkeley SPICE 3F5. Compared to SPICE 3F5, NGSPICE has many additions, is more stable and runs faster.+ The XSPICE extension adds event-driven simulation capabilities, allowing efficient simulation of digital and mixed-signal schematics. It includes new code models for analog, digital and real functions, together with digital and real node types.+ The CIDER extension adds device simulation (TCAD), by providing accurate one- and two-dimensional numerical device models based on the solution of Poisson's equation, and the electron and hole current-continuity equations.+ The simulator itself runs in background while you continue playing with this app or another.+ Some complex device models are multi-threaded to take advantage of today's multi-core processors. Schematics with many BSIM3 or BSIM4 transistors run on four cores in less than half the time needed on one core. + Analyses: OP, DC, AC, TRAN, DISTO, NOISE, PZ, SENS, TF.+ MOS models: MOS1-3, MOS6, MOS9, BSIM1, BSIM2, BSIM3 (all up to 3.3.0) BSIM4 (all up to 4.7.0), BSIMSOI (3.3 and 4.4), SOI3, HiSIM.+ Safe operating area (SOA) checks are available for resistors, capacitors, diodes, BJTs and BSIM MOS.

Reviews

3.2

80 total

5 32

4 9

3 7

2 7

1 25

This app is more of a tutorial on learning a variant of C than it is a circuit simulator, and the developers make that very clear when they refer to components (diodes, etc) as "instances." To further my assertion, the 'users manual' (lindentree webpage) is over 600 pages of script learning and software programming, but the actual 'manual' to use this app is an inept five or so paragraphs of incomplete suggestions in the 'Help' section of the app, and even then the devs couldn't resist the temptation to liberally sprinkle software programming jargon throughout. As I write this, I still haven't been able to place more than one component on a fresh schematic. This is because while the devs succeed in tutoring me in an obscure computer language, they utterly fail at showing us the very basics like part placement; or if they did show us, it's at least a five-step process. To this day I still don't know how many steps it takes to get a resistor and a cap on the schematic...

Ted Van Matje

Like this app lots! Like it so much that I'd buy it....which I will soon! :)

Dhanuram Soren

Bad app Very bad app

Android Tablet

I cannot run even sample circuits! OK I have bought pro version since review there are promising. After fiddle a while I can say this is the only SPICE app running on android with comparable power as Ltspice. You can see its power here only with bandgap sample circuit which is tailored to show full analysis strength. Do not waste time on other samples they are crippled.

Revneds Smith

Superb So far it's 100% stable and fast too. An exceptionally well thought out interface makes it easy and intuitive to use. Overall it's one of the finest bits of software I've used in a long time. I'm off to buy the full version...

Rahul Sharma

Good Ve4rrrrrry

User reviews

November 13, 2017

This app is more of a tutorial on learning a variant of C than it is a circuit simulator, and the developers make that very clear when they refer to components (diodes, etc) as "instances." To further my assertion, the 'users manual' (lindentree webpage) is over 600 pages of script learning and software programming, but the actual 'manual' to use this app is an inept five or so paragraphs of incomplete suggestions in the 'Help' section of the app, and even then the devs couldn't resist the temptation to liberally sprinkle software programming jargon throughout. As I write this, I still haven't been able to place more than one component on a fresh schematic. This is because while the devs succeed in tutoring me in an obscure computer language, they utterly fail at showing us the very basics like part placement; or if they did show us, it's at least a five-step process. To this day I still don't know how many steps it takes to get a resistor and a cap on the schematic...

I cannot run even sample circuits! OK I have bought pro version since review there are promising. After fiddle a while I can say this is the only SPICE app running on android with comparable power as Ltspice. You can see its power here only with bandgap sample circuit which is tailored to show full analysis strength. Do not waste time on other samples they are crippled.

Not all samples have pre-defined simulations. Those that do should run fine. Those that don't are usually meant to be instantiated in a simulation environment. Please contact us with more details via the contact page on our website.

Revneds Smith May 12, 2015

Superb So far it's 100% stable and fast too. An exceptionally well thought out interface makes it easy and intuitive to use. Overall it's one of the finest bits of software I've used in a long time. I'm off to buy the full version...

I have tried this on three tablets with both V4.0.4 and V4.1.1 and the demos will not run. The beginning sch screen says band gap will run. It does not. It shows error 21. After searching help, this error is simulator crashed. Beginning screen says you can try your own circuits- you cannot. You get must buy app to do this. In short, demo is non-functional and does not support the claimed operation. At least every circuit and Droid Tesla will run. No way I'm paying $16 for something whose own demo fails. Don't understand how the very few reviews for the paid version can be positive.

Obviously, most (or all) users don’t have your kind of issues. This is a serious and complex engineering tool and it is more demanding for the device (ex: available memory, OS configuration). We would be interested in diagnosing your issue. If you share this interest, please contact us via our website.

Deilton Martins September 13, 2015

Spice literally If you are not familiarized with spice program, it is hard to use this app. It could be more friendly app, specially when you compare the price with other friendly similar full feature app on google play.